I have just joined this forum few minutes ago in order to contact Dave Grohl and send him his 50th birthday greetings. I have a few queries in pursuit of my effectiveness. Since I'm a newbie here, please bear with me.

1. Dave must have replied to some of the posts here. Please share his username so that I can go through all of his posts on this forum.

2. He's a world-class titan who'd be getting a gigantic ton of fan mail. Has anyone got a reply from him in which he actually expressed his gratitude? Please share information on such events. It would be really great if I can actually look at the correspondence that took between Dave and his fan.